//  This file is part of YamlDotNet - A .NET library for YAML.
//  Copyright (c) 2013 Antoine Aubry and contributors

//  Permission is hereby granted, free of charge, to any person obtaining a copy of
//  this software and associated documentation files (the "Software"), to deal in
//  the Software without restriction, including without limitation the rights to
//  use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
//  of the Software, and to permit persons to whom the Software is furnished to do
//  so, subject to the following conditions:

//  The above copyright notice and this permission notice shall be included in all
//  copies or substantial portions of the Software.

//  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
//  IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
//  FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
//  AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
//  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
//  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
//  SOFTWARE.

using System;
using System.Collections;
using System.Collections.Generic;
using YamlDotNet.Core;
using YamlDotNet.Serialization.Utilities;

namespace YamlDotNet.Serialization.NodeDeserializers
{
	public sealed class EnumerableNodeDeserializer : INodeDeserializer
	{
		bool INodeDeserializer.Deserialize(EventReader reader, Type expectedType, Func<EventReader, Type, object> nestedObjectDeserializer, out object value)
		{
			Type itemsType;
			if (expectedType == typeof(IEnumerable))
			{
				itemsType = typeof(object);
			}
			else
			{
				var iEnumerable = ReflectionUtility.GetImplementedGenericInterface(expectedType, typeof(IEnumerable<>));
				if (iEnumerable != expectedType)
				{
					value = null;
					return false;
				}

				itemsType = iEnumerable.GetGenericArguments()[0];
			}

			var collectionType = typeof(List<>).MakeGenericType(itemsType);
			value = nestedObjectDeserializer(reader, collectionType);
			return true;
		}
	}
}

